On Burlington and Corsham that's where we grew up and played as kids.
Throwing stuff into the massive ventilation fans and finding NBC suits and other stuff left lying around on the base above ground.
Looking at the vehicles and generally messing around ( on bikes)
The MOD blocked all that off about 20 years ago but did put in a nice byway cutting across part of the area.
The road up to one of the entrances is very wide and rumoured to be a landing site for light aircraft.
When I go up there I always still ride around bits of it.

Also on the Swedish half lane thing that's quite normal. I think it's the 45 to Karlstad that has a proper Runway in the forest type road wich just opens up and goes dead straight for miles.

Does anyone know what the film was called that went like this.
A terrorist attack on Russia is thought to be an attack by the US. Russians scramble to bomb US.US lands a nuke on Russia. Russians realise that its all a mistake but the only way war can be avoided is if US nukes Washington.
Turned on half way through it 20 years ago. It was fab.